Pass Java static method to Clojure function args [duplicate]

Question

Syntax error when passing Java static method to Clojure function args directly:

(filter Character/isUpperCase "aBcD")

Why does it want the wrapper then work?

(filter #(Character/isUpperCase %) "aBcD")

NielsK · Accepted Answer · 2020-04-21 16:10:17Z

1

Because filter takes a Clojure function as first argument, and one or more collections as rest.

A Java method is not a Clojure function. Wrapping the method in an anonymous function makes it one.

answered Apr 21, 2020 at 16:10

NielsK

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